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为了提高整体叶盘通道余量分布的均匀性,提出了电极运动轨迹优化方法。分析了电解加工间隙对电极运动轨迹的影响,优化了工具电极在叶顶及叶根圆柱面上的运动轨迹,并基于轨迹线上采样点作拟合垂线段中点的样条曲线获得新的轨迹线。为了验证优化后轨迹的合理性,进行了叶盘通道电解加工对比试验。试验表明,与优化前的轨迹相比,采用优化后的轨迹,通道型面余量差从4.5mm减小到2.0mm,叶片上采样点所对应的叶盆与叶背的余量差从3.5mm减小到1.2mm,说明该轨迹优化方法能够均匀通道型面的余量分布,优化了后续精加工工序的加工环境。
In order to improve the uniformity of the distribution of the overall leaf disc margin, an optimization method of the electrode trajectory was proposed. The influence of electrolytic gap on the electrode trajectory was analyzed and the trajectory of the tool electrode on the tip and root cylindrical surfaces was optimized. Based on the sampling points on the trajectory, the spline curves fitting the midpoint of the vertical line segment were obtained. Track line. In order to verify the rationality of the optimized trajectory, comparative experiments of leaf disc channel electrolysis processing were carried out. Experiments show that, compared with the pre-optimization trajectory, the optimal trajectory is used to reduce the allowance difference of the channel profile from 4.5mm to 2.0mm, and the margin difference between the leafpot and the blade back corresponding to the sampling points on the blade is 3.5 mm reduced to 1.2mm, indicating that the trajectory optimization method can be uniform channel profile margin distribution, optimizing the subsequent finishing process processing environment.